Fireproof floor and ceiling construction.



No. 719,892. ,PATENTED FEB. 3', 1903, J. T. SIMPSON & M. N. SHOBMAKER.

FIREPROOF FLOOR AND CEILING CONSTRUCTION. APPLIOLTION FILED JULY 10,1902.

no Monmh- ATTORNEYS we uonms PETERS cu, PHOTO-LXTHO WASHINGTON b. c

NITE STATES ATENT EICE.

JOHN T. SIMPSON AND MARSHALL N. SHOEMAKER, OF NEWARK, NEWJERSEY,,ASSIGNORS TO AMERICAN CONCRETE-STEEL COMPANY, OF

NEWARK, NEW JERSEY.

FIREPROOF FLOOR AND CEILING CONSTRUCTION.

SPECIFICATION forming part of Letters Patent No. 719,892, dated February3, 1903.

Application filed July 10,1902- Scrial No. 114,998. (No model.)

To all whom it may concern:

Be it known that we, JOHN T. SIMPSON and MARSHALL N. SHOEMAKER, citizensof the United States, residing at Newark, in the county of Essex andState of New Jersey, have invented certain .new and useful Improvementsin Fireproof Floor and Ceiling Construction, of which the followingis afull and complete specification, such as will enable those skilled inthe art to which it appertains to make and use the same.

Our invention consists of an improved fireproof fioor andceilingconstruction of concrete or similar plastic material reinforced withsteel, with or without a Wire or metal lath or similar centering forreceiving the concrete or other plastic materials, the es sential pointsofithis' invention being to provide a floor construction in which thefloor shall employ the minimum amount of both concrete and steel and toproduce the desired strength and fireproof quality and provide aneffective lateral bond between the several floor-beams without employingany other materials than those composing the system, thus eifecting asaving of the tie-rods usually employed in similar construction withoutlosing the advantages of the same.

A further object of our invention is to provide a means of securing theconcrete beamcasing securely to the beam or girder by means of diagonalwires and clips to prevent its being washed away under heavywaterpressure during fire; also, to provide an extension to the clipsfor securing a suspended ceiling.

Our invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof our improvement are designated by suitable reference characters ineach of the views, and in which- Figure 1 is a section of the floorconstruction, taken at right angles to the floor-beams; Fig. 2, a planView showing the supporting members of the floor construction; Fig. 3, aplan view showing the suspended ceiling and supports for thebeam-casing; Fig. 4, a perspective View showing a section of the floorconstruction and the beam-casing, also the supports for the floorconstruction; Fig. 5, a longitudinal section of the floor construction,showing the beam and girder casing, also the supports for the floorconstruction, the concrete being removed to show the construction; Fig.6, a cross-section of the floor construction, taken at right angles tothe floor-beams, same as Fig. 1, but showing a modification. Fig. 7shows the hook used for supporting the wire of the beam or girdercasing. Fig. 8 shows another form of a hook used for supporting the wireof the beam or girder casing and diagonal rods 5. Fig. 9 shows a clip ofbeam or girder casing and extended to receive the suspended ceiling; andFig. 10 shows the concrete block used on the bottom flange of the beamor girder, forming a part of the beam or girder casing.

Referring to the drawings, A represents the floor-beams, which are shownas the ordinary I type. Through the web of these beams A, spaced atcertain intervals, are inserted the bars 1 of the floor construction,these bars supporting the clips 2, 3, and 4, these clips being made ofmetal bent into the forms shown, being adjusted to suit the thickness ofthe beam or girder casing and supporting the diagonal wires 7 of thebeam or girder casing. The bars 1, both ends of which are insertedthrough the webs of the beams A and secured thereto by means of .nuts oror in other suitable manner, are shown in the preferred form of theordinary round shape, but may be square, fiat, or some other desirableform.

To these bars 1 are attached the sleeper-clips 12, as shown, which aremade of metal of one piece cut from a fiat plate into the form shown.The clips 12 in the preferred form are placed on the bars 1 to suit thespacing of the sleepers supporting the floor-boards and have holes forbar 1 so small as to make it necessary to drive the clips on said bars,and thus secure means for holding the clips .in any desired position.

The diagonal rods 5 in the preferred form are made of a round or squarebar of ordinary rolled shape or other approved form, but may, however,be made of heavy wire,which passes through the members 4: of the clips 4and is bent around the bars 1. In the preferred form the diagonal rods 5will be placed under and supported by the bars 1 at the center,as shown.In case wire is substituted for the rods 5 it will be similarly placed;but the extreme ends will be bent back over the bars 1 and twistedaround and firmly secured in a suitable manner. The rods 5 extenddiagonally across the space between the beams A, being supported by thewire 6 at the center, where they pass under the bar 1. The ends of thesediagonal rods 5 will be supported on the two adjacent bars or extend tothe other adjacent bars, as the spans between the beams A may require,it being the purpose to keep the angle between the bars 1 and thediagonal rods 5 about constant.

Clips 8, Fig. 9, in the preferred form will be made of small flatwrought iron or steel bars bent into the form shown and secured to eachother by means of rivets or bolts 15, passing through the severalmembers of the same, the ends h being bent up and over the bottom flangeof the beams A, the bend being made of such size as may be required tosuit the thickness of the concrete forming the beam or girder casing onthe under side of the bottom flanges, the hooks n being formed toreceive the diagonal wires 7 of the beam and girder casing, the hooks onextending out for a sufficient distance beyond the hooks n to permit ofthe diagonal wires 13 forming the supports of the suspended ceilingbeing secured to them after the concrete is in place.

The supports for the beam and girder casing are formed of diagonal wires7, passing through the hooks c,f, and g of the clips 2, 3, and 4:,passing down and over the next hook n of the clips 8, then over andup.to the hooks c,f, or g of the next clip 2, 3, and 4:, and so on tothe end, the end being secured by being twisted around in a suitablemanner. The diagonal wires 9, which form the support of the concretecasing under the bottom flanges of the beam A, pass between the hooks nand m of the clips 8, diagonally across to the next clip 8, and so on tothe end, as shown in Figs. 3 and 4. The wires 10 (shown in Figs. 3, 4,and 5) pass directly between the hooks n and 'm, parallel to the beam A,and so on to the end, being secured at the ends, as described, for thewires 9, these wires 10 forming a part of the support for the beam orgirder casing. After the concrete or similar plastic material C has setor become hardened the suspended ceiling is attached to the clips 8. Inthe preferred form this suspended ceiling consists of wires 13, passingdiagonally across the space between the beams A and attached to the hookm of the clip 8, (shown in Figs. 1 and 3,) the ends of these wires beingsecured by twisting same around the hooks m of the clips 8 in a suitablemanner, and where they cross each other are secured together by means ofthe small wires 11. passing around the same, having their ends twistedtogether. To these supporting-wires 13 is secured a wire or metallathing, expanded metal, or similar material 14, having reinforcing-barsb, and this connection is made by means of the small wires 8, and uponthis material 14 is placed a plaster ceiling G of some suitablematerial.

The concrete block H shown in Fig. 10 is used as a substitute forprotecting the bottom flanges of the beams or girders, this concretebeing molded from concrete similar to the concrete of the fioorconstruction and allowed to harden before being applied to the beams,embedded in which are the clips 8 and wires 9 and 10, placed as shown inFig. 3.

In Fig. 1, D shows the wood sleepers of the ordinary form, placeddirectly on the concrete O of the floor construction. F shows thecinder-filling between the sleepers and protecting the top flanges ofbeams A, and E shows the finished floor of the ordinary type, fastenedto the wood sleepers D in the usual manner.

In Fig. 6 of the drawings we have shown another form of beam or girdercasing using an expanded metal holder K, made of metal or other suitablematerial, bent into the form shown and fastened through the clip 8 anddiagonal wires 7 of the beam or girder casing, the concentric or otherplastic material being placed around and about the same, and the clip 8being the same as the clip 8, with the hooks m omitted.

Having fully described our invention, what we claim as new, and desireto secure by Letters Patent, is

1. In afireproof floor and ceiling construction, the combination withfloor beams or girders, of main supporting metal bars extending frombeam to beam and attached thereto, clips connected therewith, anddiagonallyarranged rods connected with said clips and passing from theend of one bar diagonally across under the next adjacent bar to the endof the second adjacent bar, substantially as shown and described.

2. In a fireproof floor and ceiling construction, the combination withfloor beams and girders, of main supporting-bars extending from beam tobeam and passing therethrough and connected therewith, clips connectedtherewith, diagonally-arranged rods connected with said clips anddiagonally-arranged wires and clips passing down and about the beams andgirders, substantially as shown and described.

3. In a fireproof floor and ceiling construction, the combination withfioor beams and girders, of main supporting-bars extending from beam tobeam and passing therethrough and connected therewith, clips connectedtherewith, diagonally-arranged rods connect ed with said clips anddiagonally-arranged wires and clips passing down and about the beams andgirders, and arranged so as to support concrete around and about thebeams and girders,substantially as shown and described.

IIO

5. In a fireproof floor and ceiling construetion, the combination withfloor beams and girders, of main supporting-bars extending from beam tobeam and passing therethrough and attached thereto, clips connectedtherewith, diagonally-arranged rods connected with said clips,otherclips connected with said bars, diagonally-arranged wires connected withsaid last-named clips and passing down and around the beams and girdersand adapted to support concrete placed against the clips and flanges ofthe beams and girders, substantially as shown and described.

6. In a fireproof floor and ceiling construction, the combination withfloor beams and girders, of main supporting metal bars extending frombeam to beam and attached thereto,olips connected therewith,diagonally-.

arranged rods connected with said clips, other neath the bottom of thebeams and girders, said parts being adapted to support concrete, and afireproof-ceiling suspended below the bottom flanges of the beams andgirders, substantially as shown and described.

7. In a fireproof floor and ceiling construction, the combination withfioor beams and girders A of main supporting-bars l extending betweensaid beams and attached thereto, diagonally-arranged rods 5 extendingdiagonally between said beams and under the said bars, and attachedthereto, diagonallyarranged wires 7 placed along the sides of andparallel with the webs of said beams, clips 8 secured to the bottomflanges of said beams, diagonally-arranged wires 9 passing between theclips 8 and across and under the bottom flanges of said beams, parallelwires 10 attached to the clips 8 and running parallel with and below thebottom flanges of said beams, clips 2, 3 and 4 attached to the bars 1,supporting-wires 7 connected with said clips and wires 13 passingdiagonally between said beams and attached to the clips 8 and connectedat their intersection by wires to, substantially as shown and described.

In testimony that we claim the foregoing as our invention we have signedour names, in presence of the subscribing witnesses, this 9th day ofJuly, 1902.

J NO. T. SIMPSON; I MARSHALL N. SHOEMAKER.

Witnesses:

F. A. STEWART, G. E. MULREANY.

